xref: /qemu/configure (revision 3cc72cdb)
1#!/bin/sh
2#
3# qemu configure script (c) 2003 Fabrice Bellard
4#
5
6# Unset some variables known to interfere with behavior of common tools,
7# just as autoconf does.  Unlike autoconf, we assume that unset exists.
8unset CLICOLOR_FORCE GREP_OPTIONS BASH_ENV ENV MAIL MAILPATH CDPATH
9
10# Don't allow CCACHE, if present, to use cached results of compile tests!
11export CCACHE_RECACHE=yes
12
13# make source path absolute
14source_path=$(cd "$(dirname -- "$0")"; pwd)
15
16if test "$PWD" = "$source_path"
17then
18    echo "Using './build' as the directory for build output"
19
20    MARKER=build/auto-created-by-configure
21
22    if test -e build
23    then
24        if test -f $MARKER
25        then
26           rm -rf build
27        else
28            echo "ERROR: ./build dir already exists and was not previously created by configure"
29            exit 1
30        fi
31    fi
32
33    if ! mkdir build || ! touch $MARKER
34    then
35        echo "ERROR: Could not create ./build directory. Check the permissions on"
36        echo "your source directory, or try doing an out-of-tree build."
37        exit 1
38    fi
39
40    cat > GNUmakefile <<'EOF'
41# This file is auto-generated by configure to support in-source tree
42# 'make' command invocation
43
44ifeq ($(MAKECMDGOALS),)
45recurse: all
46endif
47
48.NOTPARALLEL: %
49%: force
50	@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
51	@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
52	@if test "$(MAKECMDGOALS)" = "distclean" && \
53	    test -e build/auto-created-by-configure ; \
54	then \
55	    rm -rf build GNUmakefile ; \
56	fi
57force: ;
58.PHONY: force
59GNUmakefile: ;
60
61EOF
62    cd build
63    exec "$source_path/configure" "$@"
64fi
65
66# Temporary directory used for files created while
67# configure runs. Since it is in the build directory
68# we can safely blow away any previous version of it
69# (and we need not jump through hoops to try to delete
70# it when configure exits.)
71TMPDIR1="config-temp"
72rm -rf "${TMPDIR1}"
73if ! mkdir -p "${TMPDIR1}"; then
74    echo "ERROR: failed to create temporary directory"
75    exit 1
76fi
77
78TMPB="qemu-conf"
79TMPC="${TMPDIR1}/${TMPB}.c"
80TMPO="${TMPDIR1}/${TMPB}.o"
81TMPE="${TMPDIR1}/${TMPB}.exe"
82
83rm -f config.log
84
85# Print a helpful header at the top of config.log
86echo "# QEMU configure log $(date)" >> config.log
87printf "# Configured with:" >> config.log
88# repeat the invocation to log and stdout for CI
89invoke=$(printf " '%s'" "$0" "$@")
90test -n "$GITLAB_CI" && echo "configuring with: $invoke"
91{ echo "$invoke"; echo; echo "#"; } >> config.log
92
93quote_sh() {
94    printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
95}
96
97print_error() {
98    (echo
99    echo "ERROR: $1"
100    while test -n "$2"; do
101        echo "       $2"
102        shift
103    done
104    echo) >&2
105}
106
107error_exit() {
108    print_error "$@"
109    exit 1
110}
111
112do_compiler() {
113  # Run the compiler, capturing its output to the log. First argument
114  # is compiler binary to execute.
115  compiler="$1"
116  shift
117  if test -n "$BASH_VERSION"; then eval '
118      echo >>config.log "
119funcs: ${FUNCNAME[*]}
120lines: ${BASH_LINENO[*]}"
121  '; fi
122  echo $compiler "$@" >> config.log
123  $compiler "$@" >> config.log 2>&1 || return $?
124}
125
126do_cc() {
127    do_compiler "$cc" $CPU_CFLAGS "$@"
128}
129
130compile_object() {
131  local_cflags="$1"
132  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
133}
134
135compile_prog() {
136  local_cflags="$1"
137  local_ldflags="$2"
138  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
139      $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
140}
141
142# symbolically link $1 to $2.  Portable version of "ln -sf".
143symlink() {
144  rm -rf "$2"
145  mkdir -p "$(dirname "$2")"
146  ln -s "$1" "$2"
147}
148
149# check whether a command is available to this shell (may be either an
150# executable or a builtin)
151has() {
152    type "$1" >/dev/null 2>&1
153}
154
155version_ge () {
156    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
157    local_ver2=$(echo "$2" | tr . ' ')
158    while true; do
159        set x $local_ver1
160        local_first=${2-0}
161        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
162        shift ${2:+2}
163        local_ver1=$*
164        set x $local_ver2
165        # the second argument finished, the first must be greater or equal
166        test $# = 1 && return 0
167        test $local_first -lt $2 && return 1
168        test $local_first -gt $2 && return 0
169        shift ${2:+2}
170        local_ver2=$*
171    done
172}
173
174if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
175then
176  error_exit "main directory cannot contain spaces nor colons"
177fi
178
179# parse CC options first; some compiler tests are used to establish
180# some defaults, based on the host environment
181
182# default parameters
183container_engine="auto"
184cpu=""
185cross_compile="no"
186cross_prefix=""
187host_cc="cc"
188EXTRA_CFLAGS=""
189EXTRA_CXXFLAGS=""
190EXTRA_OBJCFLAGS=""
191EXTRA_LDFLAGS=""
192
193# Default value for a variable defining feature "foo".
194#  * foo="no"  feature will only be used if --enable-foo arg is given
195#  * foo=""    feature will be searched for, and if found, will be used
196#              unless --disable-foo is given
197#  * foo="yes" this value will only be set by --enable-foo flag.
198#              feature will searched for,
199#              if not found, configure exits with error
200#
201# Always add --enable-foo and --disable-foo command line args.
202# Distributions want to ensure that several features are compiled in, and it
203# is impossible without a --enable-foo that exits if a feature is not found.
204default_feature=""
205
206for opt do
207  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
208  case "$opt" in
209  --cross-prefix=*) cross_prefix="$optarg"
210                    cross_compile="yes"
211  ;;
212  --cc=*) CC="$optarg"
213  ;;
214  --cxx=*) CXX="$optarg"
215  ;;
216  --objcc=*) objcc="$optarg"
217  ;;
218  --cpu=*) cpu="$optarg"
219  ;;
220  --extra-cflags=*)
221    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
222    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
223    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
224    ;;
225  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
226  ;;
227  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
228  ;;
229  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
230  ;;
231  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
232  ;;
233  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
234                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
235  ;;
236  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
237                eval "cross_cc_${cc_arch}=\$optarg"
238  ;;
239  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
240  ;;
241  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
242                    eval "cross_prefix_${cc_arch}=\$optarg"
243  ;;
244  --without-default-features) default_feature="no"
245  ;;
246  esac
247done
248
249default_cflags='-O2 -g'
250git_submodules_action="update"
251git="git"
252docs="auto"
253EXESUF=""
254prefix="/usr/local"
255qemu_suffix="qemu"
256system="yes"
257linux_user=""
258bsd_user=""
259plugins="$default_feature"
260subdirs=""
261ninja=""
262python=
263download="enabled"
264bindir="bin"
265skip_meson=no
266use_containers="yes"
267gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
268gdb_arches=""
269werror=""
270
271# Don't accept a target_list environment variable.
272unset target_list
273unset target_list_exclude
274
275# The following Meson options are handled manually (still they
276# are included in the automatically generated help message)
277# because they automatically enable/disable other options
278tcg="auto"
279cfi="false"
280
281# Meson has PIE as a boolean rather than enabled/disabled/auto,
282# and we also need to check for -static-pie before Meson runs
283# which requires knowing whether --static is enabled.
284pie=""
285static="no"
286
287# Preferred compiler:
288#  ${CC} (if set)
289#  ${cross_prefix}gcc (if cross-prefix specified)
290#  system compiler
291if test -z "${CC}${cross_prefix}"; then
292  cc="cc"
293else
294  cc="${CC-${cross_prefix}gcc}"
295fi
296
297if test -z "${CXX}${cross_prefix}"; then
298  cxx="c++"
299else
300  cxx="${CXX-${cross_prefix}g++}"
301fi
302
303# Preferred ObjC compiler:
304# $objcc (if set, i.e. via --objcc option)
305# ${cross_prefix}clang (if cross-prefix specified)
306# clang (if available)
307# $cc
308if test -z "${objcc}${cross_prefix}"; then
309  if has clang; then
310    objcc=clang
311  else
312    objcc="$cc"
313  fi
314else
315  objcc="${objcc-${cross_prefix}clang}"
316fi
317
318ar="${AR-${cross_prefix}ar}"
319as="${AS-${cross_prefix}as}"
320ccas="${CCAS-$cc}"
321objcopy="${OBJCOPY-${cross_prefix}objcopy}"
322ld="${LD-${cross_prefix}ld}"
323ranlib="${RANLIB-${cross_prefix}ranlib}"
324nm="${NM-${cross_prefix}nm}"
325smbd="$SMBD"
326strip="${STRIP-${cross_prefix}strip}"
327widl="${WIDL-${cross_prefix}widl}"
328windres="${WINDRES-${cross_prefix}windres}"
329windmc="${WINDMC-${cross_prefix}windmc}"
330pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
331sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
332
333check_define() {
334cat > $TMPC <<EOF
335#if !defined($1)
336#error $1 not defined
337#endif
338int main(void) { return 0; }
339EOF
340  compile_object
341}
342
343write_c_skeleton() {
344    cat > $TMPC <<EOF
345int main(void) { return 0; }
346EOF
347}
348
349if check_define __linux__ ; then
350  targetos=linux
351elif check_define _WIN32 ; then
352  targetos=windows
353elif check_define __OpenBSD__ ; then
354  targetos=openbsd
355elif check_define __sun__ ; then
356  targetos=sunos
357elif check_define __HAIKU__ ; then
358  targetos=haiku
359elif check_define __FreeBSD__ ; then
360  targetos=freebsd
361elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
362  targetos=gnu/kfreebsd
363elif check_define __DragonFly__ ; then
364  targetos=dragonfly
365elif check_define __NetBSD__; then
366  targetos=netbsd
367elif check_define __APPLE__; then
368  targetos=darwin
369else
370  # This is a fatal error, but don't report it yet, because we
371  # might be going to just print the --help text, or it might
372  # be the result of a missing compiler.
373  targetos=bogus
374fi
375
376# OS specific
377
378case $targetos in
379windows)
380  plugins="no"
381  pie="no"
382;;
383haiku)
384  pie="no"
385;;
386esac
387
388if test ! -z "$cpu" ; then
389  # command line argument
390  :
391elif check_define __i386__ ; then
392  cpu="i386"
393elif check_define __x86_64__ ; then
394  if check_define __ILP32__ ; then
395    cpu="x32"
396  else
397    cpu="x86_64"
398  fi
399elif check_define __sparc__ ; then
400  if check_define __arch64__ ; then
401    cpu="sparc64"
402  else
403    cpu="sparc"
404  fi
405elif check_define _ARCH_PPC ; then
406  if check_define _ARCH_PPC64 ; then
407    if check_define _LITTLE_ENDIAN ; then
408      cpu="ppc64le"
409    else
410      cpu="ppc64"
411    fi
412  else
413    cpu="ppc"
414  fi
415elif check_define __mips__ ; then
416  cpu="mips"
417elif check_define __s390__ ; then
418  if check_define __s390x__ ; then
419    cpu="s390x"
420  else
421    cpu="s390"
422  fi
423elif check_define __riscv ; then
424  if check_define _LP64 ; then
425    cpu="riscv64"
426  else
427    cpu="riscv32"
428  fi
429elif check_define __arm__ ; then
430  cpu="arm"
431elif check_define __aarch64__ ; then
432  cpu="aarch64"
433elif check_define __loongarch64 ; then
434  cpu="loongarch64"
435else
436  # Using uname is really broken, but it is just a fallback for architectures
437  # that are going to use TCI anyway
438  cpu=$(uname -m)
439  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
440fi
441
442# Normalise host CPU name to the values used by Meson cross files and in source
443# directories, and set multilib cflags.  The canonicalization isn't really
444# necessary, because the architectures that we check for should not hit the
445# 'uname -m' case, but better safe than sorry in case --cpu= is used.
446#
447# Note that this case should only have supported host CPUs, not guests.
448# Please keep it sorted and synchronized with meson.build's host_arch.
449host_arch=
450linux_arch=
451case "$cpu" in
452  aarch64)
453    host_arch=aarch64
454    linux_arch=arm64
455    ;;
456
457  armv*b|armv*l|arm)
458    cpu=arm
459    host_arch=arm
460    linux_arch=arm
461    ;;
462
463  i386|i486|i586|i686)
464    cpu="i386"
465    host_arch=i386
466    linux_arch=x86
467    CPU_CFLAGS="-m32"
468    ;;
469
470  loongarch*)
471    cpu=loongarch64
472    host_arch=loongarch64
473    ;;
474
475  mips64*)
476    cpu=mips64
477    host_arch=mips
478    linux_arch=mips
479    ;;
480  mips*)
481    cpu=mips
482    host_arch=mips
483    linux_arch=mips
484    ;;
485
486  ppc)
487    host_arch=ppc
488    linux_arch=powerpc
489    CPU_CFLAGS="-m32"
490    ;;
491  ppc64)
492    host_arch=ppc64
493    linux_arch=powerpc
494    CPU_CFLAGS="-m64 -mbig-endian"
495    ;;
496  ppc64le)
497    cpu=ppc64
498    host_arch=ppc64
499    linux_arch=powerpc
500    CPU_CFLAGS="-m64 -mlittle-endian"
501    ;;
502
503  riscv32 | riscv64)
504    host_arch=riscv
505    linux_arch=riscv
506    ;;
507
508  s390)
509    linux_arch=s390
510    CPU_CFLAGS="-m31"
511    ;;
512  s390x)
513    host_arch=s390x
514    linux_arch=s390
515    CPU_CFLAGS="-m64"
516    ;;
517
518  sparc|sun4[cdmuv])
519    cpu=sparc
520    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
521    ;;
522  sparc64)
523    host_arch=sparc64
524    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
525    ;;
526
527  x32)
528    cpu="x86_64"
529    host_arch=x86_64
530    linux_arch=x86
531    CPU_CFLAGS="-mx32"
532    ;;
533  x86_64|amd64)
534    cpu="x86_64"
535    host_arch=x86_64
536    linux_arch=x86
537    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
538    # If we truly care, we should simply detect this case at
539    # runtime and generate the fallback to serial emulation.
540    CPU_CFLAGS="-m64 -mcx16"
541    ;;
542esac
543
544if test -n "$host_arch" && {
545    ! test -d "$source_path/linux-user/include/host/$host_arch" ||
546    ! test -d "$source_path/common-user/host/$host_arch"; }; then
547    error_exit "linux-user/include/host/$host_arch does not exist." \
548       "This is a bug in the configure script, please report it."
549fi
550if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
551    error_exit "linux-headers/asm-$linux_arch does not exist." \
552       "This is a bug in the configure script, please report it."
553fi
554
555check_py_version() {
556    # We require python >= 3.8.
557    # NB: a True python conditional creates a non-zero return code (Failure)
558    "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
559}
560
561first_python=
562if test -z "${PYTHON}"; then
563    # A bare 'python' is traditionally python 2.x, but some distros
564    # have it as python 3.x, so check in both places.
565    for binary in python3 python python3.11 python3.10 python3.9 python3.8; do
566        if has "$binary"; then
567            python=$(command -v "$binary")
568            if check_py_version "$python"; then
569                # This one is good.
570                first_python=
571                break
572            else
573                first_python=$python
574            fi
575        fi
576    done
577else
578    # Same as above, but only check the environment variable.
579    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
580    python=$(command -v "$PYTHON")
581    if check_py_version "$python"; then
582        # This one is good.
583        first_python=
584    else
585        first_python=$first_python
586    fi
587fi
588
589# Check for ancillary tools used in testing
590genisoimage=
591for binary in genisoimage mkisofs
592do
593    if has $binary
594    then
595        genisoimage=$(command -v "$binary")
596        break
597    fi
598done
599
600if test "$targetos" = "windows" ; then
601  EXESUF=".exe"
602  prefix="/qemu"
603  bindir=""
604  qemu_suffix=""
605fi
606
607meson_option_build_array() {
608  printf '['
609  (if test "$targetos" = windows; then
610    IFS=\;
611  else
612    IFS=:
613  fi
614  for e in $1; do
615    printf '"""'
616    # backslash escape any '\' and '"' characters
617    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
618    printf '""",'
619  done)
620  printf ']\n'
621}
622
623. "$source_path/scripts/meson-buildoptions.sh"
624
625meson_options=
626meson_option_add() {
627  meson_options="$meson_options $(quote_sh "$1")"
628}
629meson_option_parse() {
630  meson_options="$meson_options $(_meson_option_parse "$@")"
631  if test $? -eq 1; then
632    echo "ERROR: unknown option $1"
633    echo "Try '$0 --help' for more information"
634    exit 1
635  fi
636}
637
638for opt do
639  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
640  case "$opt" in
641  --help|-h) show_help=yes
642  ;;
643  --version|-V) exec cat "$source_path/VERSION"
644  ;;
645  --prefix=*) prefix="$optarg"
646  ;;
647  --cross-prefix=*)
648  ;;
649  --cc=*)
650  ;;
651  --host-cc=*) host_cc="$optarg"
652  ;;
653  --cxx=*)
654  ;;
655  --objcc=*)
656  ;;
657  --make=*)
658  ;;
659  --install=*)
660  ;;
661  --python=*) python="$optarg"
662  ;;
663  --skip-meson) skip_meson=yes
664  ;;
665  --ninja=*) ninja="$optarg"
666  ;;
667  --smbd=*) smbd="$optarg"
668  ;;
669  --extra-cflags=*)
670  ;;
671  --extra-cxxflags=*)
672  ;;
673  --extra-objcflags=*)
674  ;;
675  --extra-ldflags=*)
676  ;;
677  --cross-cc-*)
678  ;;
679  --cross-prefix-*)
680  ;;
681  --enable-docs) docs=enabled
682  ;;
683  --disable-docs) docs=disabled
684  ;;
685  --cpu=*)
686  ;;
687  --target-list=*) target_list="$optarg"
688                   if test "$target_list_exclude"; then
689                       error_exit "Can't mix --target-list with --target-list-exclude"
690                   fi
691  ;;
692  --target-list-exclude=*) target_list_exclude="$optarg"
693                   if test "$target_list"; then
694                       error_exit "Can't mix --target-list-exclude with --target-list"
695                   fi
696  ;;
697  --with-default-devices) meson_option_add -Ddefault_devices=true
698  ;;
699  --without-default-devices) meson_option_add -Ddefault_devices=false
700  ;;
701  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
702  ;;
703  --with-devices-*) device_arch=${opt#--with-devices-};
704                    device_arch=${device_arch%%=*}
705                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
706                    if test -f "$cf"; then
707                        device_archs="$device_archs $device_arch"
708                        eval "devices_${device_arch}=\$optarg"
709                    else
710                        error_exit "File $cf does not exist"
711                    fi
712  ;;
713  --without-default-features) # processed above
714  ;;
715  --static) static="yes"
716  ;;
717  --bindir=*) bindir="$optarg"
718  ;;
719  --with-suffix=*) qemu_suffix="$optarg"
720  ;;
721  --host=*|--build=*|\
722  --disable-dependency-tracking|\
723  --sbindir=*|--sharedstatedir=*|\
724  --oldincludedir=*|--datarootdir=*|--infodir=*|\
725  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
726    # These switches are silently ignored, for compatibility with
727    # autoconf-generated configure scripts. This allows QEMU's
728    # configure to be used by RPM and similar macros that set
729    # lots of directory switches by default.
730  ;;
731  --enable-debug)
732      # Enable debugging options that aren't excessively noisy
733      meson_option_parse --enable-debug-tcg ""
734      meson_option_parse --enable-debug-graph-lock ""
735      meson_option_parse --enable-debug-mutex ""
736      meson_option_add -Doptimization=0
737      default_cflags='-O0 -g'
738  ;;
739  --disable-tcg) tcg="disabled"
740                 plugins="no"
741  ;;
742  --enable-tcg) tcg="enabled"
743  ;;
744  --disable-system) system="no"
745  ;;
746  --enable-system) system="yes"
747  ;;
748  --disable-user)
749      linux_user="no" ;
750      bsd_user="no" ;
751  ;;
752  --enable-user) ;;
753  --disable-linux-user) linux_user="no"
754  ;;
755  --enable-linux-user) linux_user="yes"
756  ;;
757  --disable-bsd-user) bsd_user="no"
758  ;;
759  --enable-bsd-user) bsd_user="yes"
760  ;;
761  --enable-pie) pie="yes"
762  ;;
763  --disable-pie) pie="no"
764  ;;
765  --enable-werror) werror="yes"
766  ;;
767  --disable-werror) werror="no"
768  ;;
769  --enable-cfi)
770      cfi="true";
771      meson_option_add -Db_lto=true
772  ;;
773  --disable-cfi) cfi="false"
774  ;;
775  --disable-download) download="disabled"; git_submodules_action=validate;
776  ;;
777  --enable-download) download="enabled"; git_submodules_action=update;
778  ;;
779  --enable-plugins) if test "$targetos" = "windows"; then
780                        error_exit "TCG plugins not currently supported on Windows platforms"
781                    else
782                        plugins="yes"
783                    fi
784  ;;
785  --disable-plugins) plugins="no"
786  ;;
787  --enable-containers) use_containers="yes"
788  ;;
789  --disable-containers) use_containers="no"
790  ;;
791  --container-engine=*) container_engine="$optarg"
792  ;;
793  --gdb=*) gdb_bin="$optarg"
794  ;;
795  # everything else has the same name in configure and meson
796  --*) meson_option_parse "$opt" "$optarg"
797  ;;
798  # Pass through -Dxxxx options to meson
799  -D*) meson_options="$meson_options $opt"
800  ;;
801  esac
802done
803
804if ! test -e "$source_path/.git"
805then
806    git_submodules_action="validate"
807fi
808
809# test for any invalid configuration combinations
810if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
811    error_exit "Can't enable plugins on non-TCG builds"
812fi
813
814if ! test -f "$source_path/subprojects/keycodemapdb/README" \
815    && test "$download" = disabled
816then
817    echo
818    echo "ERROR: missing subprojects"
819    echo
820    if test -e "$source_path/.git"; then
821        echo "--disable-download specified but subprojects were not"
822        echo 'checked out.  Please invoke "meson subprojects download"'
823        echo "before configuring QEMU, or remove --disable-download"
824        echo "from the command line."
825    else
826        echo "This is not a GIT checkout but subproject content appears to"
827        echo "be missing. Do not use 'git archive' or GitHub download links"
828        echo "to acquire QEMU source archives. Non-GIT builds are only"
829        echo "supported with source archives linked from:"
830        echo
831        echo "  https://www.qemu.org/download/#source"
832        echo
833        echo "Developers working with GIT can use scripts/archive-source.sh"
834        echo "if they need to create valid source archives."
835    fi
836    echo
837    exit 1
838fi
839
840default_target_list=""
841mak_wilds=""
842
843if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
844    if [ "$linux_user" != no ]; then
845        if [ "$targetos" = linux ]; then
846            linux_user=yes
847        elif [ "$linux_user" = yes ]; then
848            error_exit "linux-user not supported on this architecture"
849        fi
850        if [ "$linux_user" = "yes" ]; then
851            mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
852        fi
853    fi
854    if [ "$bsd_user" != no ]; then
855        if [ "$bsd_user" = "" ]; then
856            test $targetos = freebsd && bsd_user=yes
857        fi
858        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
859            error_exit "bsd-user not supported on this host OS"
860        fi
861        if [ "$bsd_user" = "yes" ]; then
862            mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
863        fi
864    fi
865else
866    if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
867        error_exit "user mode emulation not supported on this architecture"
868    fi
869fi
870if [ "$system" = "yes" ]; then
871    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
872fi
873
874for config in $mak_wilds; do
875    target="$(basename "$config" .mak)"
876    if echo "$target_list_exclude" | grep -vq "$target"; then
877        default_target_list="${default_target_list} $target"
878    fi
879done
880
881if test x"$show_help" = x"yes" ; then
882cat << EOF
883
884Usage: configure [options]
885Options: [defaults in brackets after descriptions]
886
887Standard options:
888  --help                   print this message
889  --prefix=PREFIX          install in PREFIX [$prefix]
890  --target-list=LIST       set target list (default: build all)
891$(echo Available targets: $default_target_list | \
892  fold -s -w 53 | sed -e 's/^/                           /')
893  --target-list-exclude=LIST exclude a set of targets from the default target-list
894
895Advanced options (experts only):
896  -Dmesonoptname=val       passthrough option to meson unmodified
897  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
898  --cc=CC                  use C compiler CC [$cc]
899  --host-cc=CC             when cross compiling, use C compiler CC for code run
900                           at build time [$host_cc]
901  --cxx=CXX                use C++ compiler CXX [$cxx]
902  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
903  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
904  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
905  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
906  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
907  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
908  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
909  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
910  --python=PYTHON          use specified python [$python]
911  --ninja=NINJA            use specified ninja [$ninja]
912  --smbd=SMBD              use specified smbd [$smbd]
913  --static                 enable static build [$static]
914  --bindir=PATH            install binaries in PATH
915  --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
916  --without-default-features default all --enable-* options to "disabled"
917  --without-default-devices  do not include any device that is not needed to
918                           start the emulator (only use if you are including
919                           desired devices in configs/devices/)
920  --with-devices-ARCH=NAME override default configs/devices
921  --enable-debug           enable common debug build options
922  --disable-werror         disable compilation abort on warning
923  --cpu=CPU                Build for host CPU [$cpu]
924  --enable-plugins
925                           enable plugins via shared library loading
926  --disable-containers     don't use containers for cross-building
927  --container-engine=TYPE  which container engine to use [$container_engine]
928  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
929EOF
930  meson_options_help
931cat << EOF
932  system          all system emulation targets
933  user            supported user emulation targets
934  linux-user      all linux usermode emulation targets
935  bsd-user        all BSD usermode emulation targets
936  pie             Position Independent Executables
937
938NOTE: The object files are built at the place where configure is launched
939EOF
940exit 0
941fi
942
943# Remove old dependency files to make sure that they get properly regenerated
944rm -f ./*/config-devices.mak.d
945
946if test -z "$python"
947then
948    # If first_python is set, there was a binary somewhere even though
949    # it was not suitable.  Use it for the error message.
950    if test -n "$first_python"; then
951        error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
952            "Use --python=/path/to/python to specify a supported Python."
953    else
954        error_exit "Python not found. Use --python=/path/to/python"
955    fi
956fi
957
958if ! check_py_version "$python"; then
959  error_exit "Cannot use '$python', Python >= 3.8 is required." \
960             "Use --python=/path/to/python to specify a supported Python." \
961             "Maybe try:" \
962             "  openSUSE Leap 15.3+: zypper install python39" \
963             "  CentOS 8: dnf install python38"
964fi
965
966# Resolve PATH
967python="$(command -v "$python")"
968
969# Create a Python virtual environment using our configured python.
970# The stdout of this script will be the location of a symlink that
971# points to the configured Python.
972# Entry point scripts for pip, meson, and sphinx are generated if those
973# packages are present.
974
975# Defaults assumed for now:
976# - venv is cleared if it exists already;
977# - venv is allowed to use system packages;
978# - all setup can be performed offline;
979# - missing packages may be fetched from PyPI,
980#   unless --disable-download is passed.
981# - pip is not installed into the venv when possible,
982#   but ensurepip is called as a fallback when necessary.
983
984echo "python determined to be '$python'"
985echo "python version: $($python --version)"
986
987python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
988if test "$?" -ne 0 ; then
989    error_exit "python venv creation failed"
990fi
991
992# Suppress writing compiled files
993python="$python -B"
994mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
995
996# Finish preparing the virtual environment using vendored .whl files
997
998if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
999    $mkvenv ensure --dir "${source_path}/python/wheels" \
1000        'tomli>=1.2.0' || exit 1
1001fi
1002$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
1003     ${source_path}/pythondeps.toml meson || exit 1
1004
1005# At this point, we expect Meson to be installed and available.
1006# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
1007# We ignore PATH completely here: we want to use the venv's Meson
1008# *exclusively*.
1009
1010meson="$(cd pyvenv/bin; pwd)/meson"
1011
1012# Conditionally ensure Sphinx is installed.
1013
1014mkvenv_flags=""
1015if test "$download" = "enabled" -a "$docs" = "enabled" ; then
1016    mkvenv_flags="--online"
1017fi
1018
1019if test "$docs" != "disabled" ; then
1020    if ! $mkvenv ensuregroup \
1021         $mkvenv_flags \
1022         ${source_path}/pythondeps.toml docs;
1023    then
1024        if test "$docs" = "enabled" ; then
1025            exit 1
1026        fi
1027        echo "Sphinx not found/usable, disabling docs."
1028        docs=disabled
1029    else
1030        docs=enabled
1031    fi
1032fi
1033
1034# Probe for ninja
1035
1036if test -z "$ninja"; then
1037    for c in ninja ninja-build samu; do
1038        if has $c; then
1039            ninja=$(command -v "$c")
1040            break
1041        fi
1042    done
1043    if test -z "$ninja"; then
1044      error_exit "Cannot find Ninja"
1045    fi
1046fi
1047
1048# Consult white-list to determine whether to enable werror
1049# by default.  Only enable by default for git builds
1050if test -z "$werror" ; then
1051    if test -e "$source_path/.git" && \
1052        { test "$targetos" = linux || test "$targetos" = "windows"; }; then
1053        werror="yes"
1054    else
1055        werror="no"
1056    fi
1057fi
1058
1059if test "$targetos" = "bogus"; then
1060    # Now that we know that we're not printing the help and that
1061    # the compiler works (so the results of the check_defines we used
1062    # to identify the OS are reliable), if we didn't recognize the
1063    # host OS we should stop now.
1064    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1065fi
1066
1067if test "$static" = "yes" ; then
1068  if test "$plugins" = "yes"; then
1069    error_exit "static and plugins are mutually incompatible"
1070  else
1071    plugins="no"
1072  fi
1073fi
1074test "$plugins" = "" && plugins=yes
1075if test "$plugins" = "yes"; then
1076  subdirs="$subdirs contrib/plugins"
1077fi
1078
1079cat > $TMPC << EOF
1080
1081#ifdef __linux__
1082#  define THREAD __thread
1083#else
1084#  define THREAD
1085#endif
1086static THREAD int tls_var;
1087int main(void) { return tls_var; }
1088EOF
1089
1090if test "$static" = "yes"; then
1091  if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1092    pie="yes"
1093  elif test "$pie" = "yes"; then
1094    error_exit "-static-pie not available due to missing toolchain support"
1095  else
1096    pie="no"
1097  fi
1098elif test "$pie" != "no"; then
1099  if compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1100    pie="yes"
1101  elif test "$pie" = "yes"; then
1102    error_exit "PIE not available due to missing toolchain support"
1103  else
1104    echo "Disabling PIE due to missing toolchain support"
1105    pie="no"
1106  fi
1107fi
1108
1109##########################################
1110
1111if test -z "${target_list+xxx}" ; then
1112    default_targets=yes
1113    for target in $default_target_list; do
1114        target_list="$target_list $target"
1115    done
1116    target_list="${target_list# }"
1117else
1118    default_targets=no
1119    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1120    for target in $target_list; do
1121        # Check that we recognised the target name; this allows a more
1122        # friendly error message than if we let it fall through.
1123        case " $default_target_list " in
1124            *" $target "*)
1125                ;;
1126            *)
1127                error_exit "Unknown target name '$target'"
1128                ;;
1129        esac
1130    done
1131fi
1132
1133if test "$tcg" = "auto"; then
1134  if test -z "$target_list"; then
1135    tcg="disabled"
1136  else
1137    tcg="enabled"
1138  fi
1139fi
1140
1141##########################################
1142# big/little endian test
1143cat > $TMPC << EOF
1144#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1145# error LITTLE
1146#endif
1147int main(void) { return 0; }
1148EOF
1149
1150if ! compile_prog ; then
1151  bigendian="no"
1152else
1153  cat > $TMPC << EOF
1154#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1155# error BIG
1156#endif
1157int main(void) { return 0; }
1158EOF
1159
1160  if ! compile_prog ; then
1161    bigendian="yes"
1162  else
1163    echo big/little test failed
1164    exit 1
1165  fi
1166fi
1167
1168########################################
1169# check if ccache is interfering with
1170# semantic analysis of macros
1171
1172unset CCACHE_CPP2
1173ccache_cpp2=no
1174cat > $TMPC << EOF
1175static const int Z = 1;
1176#define fn() ({ Z; })
1177#define TAUT(X) ((X) == Z)
1178#define PAREN(X, Y) (X == Y)
1179#define ID(X) (X)
1180int main(void)
1181{
1182    int x = 0, y = 0;
1183    x = ID(x);
1184    x = fn();
1185    fn();
1186    if (PAREN(x, y)) return 0;
1187    if (TAUT(Z)) return 0;
1188    return 0;
1189}
1190EOF
1191
1192if ! compile_object "-Werror"; then
1193    ccache_cpp2=yes
1194fi
1195
1196##########################################
1197# functions to probe cross compilers
1198
1199container="no"
1200runc=""
1201if test $use_containers = "yes" && (has "docker" || has "podman"); then
1202    case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1203        *docker) container=docker ;;
1204        podman) container=podman ;;
1205        no) container=no ;;
1206    esac
1207    if test "$container" != "no"; then
1208        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1209        runc=$container
1210    fi
1211fi
1212
1213# cross compilers defaults, can be overridden with --cross-cc-ARCH
1214: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1215: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1216: ${cross_prefix_alpha="alpha-linux-gnu-"}
1217: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1218: ${cross_prefix_armeb="$cross_prefix_arm"}
1219: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1220: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1221: ${cross_prefix_hppa="hppa-linux-gnu-"}
1222: ${cross_prefix_i386="i686-linux-gnu-"}
1223: ${cross_prefix_m68k="m68k-linux-gnu-"}
1224: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1225: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1226: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1227: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1228: ${cross_prefix_mips="mips-linux-gnu-"}
1229: ${cross_prefix_nios2="nios2-linux-gnu-"}
1230: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1231: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1232: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1233: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1234: ${cross_prefix_s390x="s390x-linux-gnu-"}
1235: ${cross_prefix_sh4="sh4-linux-gnu-"}
1236: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1237: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1238: ${cross_prefix_tricore="tricore-"}
1239: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1240
1241: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1242: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1243: ${cross_cc_armeb="$cross_cc_arm"}
1244: ${cross_cc_cflags_armeb="-mbig-endian"}
1245: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1246: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1247: ${cross_cc_cflags_i386="-m32"}
1248: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1249: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1250: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1251: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1252: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1253: ${cross_cc_sparc="$cross_cc_sparc64"}
1254: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1255: ${cross_cc_cflags_x86_64="-m64"}
1256
1257compute_target_variable() {
1258  eval "$2="
1259  if eval test -n "\"\${cross_prefix_$1}\""; then
1260    if eval has "\"\${cross_prefix_$1}\$3\""; then
1261      eval "$2=\"\${cross_prefix_$1}\$3\""
1262    fi
1263  fi
1264}
1265
1266have_target() {
1267  for i; do
1268    case " $target_list " in
1269      *" $i "*) return 0;;
1270      *) ;;
1271    esac
1272  done
1273  return 1
1274}
1275
1276# probe_target_compiler TARGET
1277#
1278# Look for a compiler for the given target, either native or cross.
1279# Set variables target_* if a compiler is found, and container_cross_*
1280# if a Docker-based cross-compiler image is known for the target.
1281# Set got_cross_cc to yes/no depending on whether a non-container-based
1282# compiler was found.
1283#
1284# If TARGET is a user-mode emulation target, also set build_static to
1285# "y" if static linking is possible.
1286#
1287probe_target_compiler() {
1288  # reset all output variables
1289  got_cross_cc=no
1290  container_image=
1291  container_hosts=
1292  container_cross_cc=
1293  container_cross_ar=
1294  container_cross_as=
1295  container_cross_ld=
1296  container_cross_nm=
1297  container_cross_objcopy=
1298  container_cross_ranlib=
1299  container_cross_strip=
1300
1301  target_arch=${1%%-*}
1302  case $target_arch in
1303    aarch64) container_hosts="x86_64 aarch64" ;;
1304    alpha) container_hosts=x86_64 ;;
1305    arm) container_hosts="x86_64 aarch64" ;;
1306    cris) container_hosts=x86_64 ;;
1307    hexagon) container_hosts=x86_64 ;;
1308    hppa) container_hosts=x86_64 ;;
1309    i386) container_hosts=x86_64 ;;
1310    loongarch64) container_hosts=x86_64 ;;
1311    m68k) container_hosts=x86_64 ;;
1312    microblaze) container_hosts=x86_64 ;;
1313    mips64el) container_hosts=x86_64 ;;
1314    mips64) container_hosts=x86_64 ;;
1315    mipsel) container_hosts=x86_64 ;;
1316    mips) container_hosts=x86_64 ;;
1317    nios2) container_hosts=x86_64 ;;
1318    ppc) container_hosts=x86_64 ;;
1319    ppc64|ppc64le) container_hosts=x86_64 ;;
1320    riscv64) container_hosts=x86_64 ;;
1321    s390x) container_hosts=x86_64 ;;
1322    sh4) container_hosts=x86_64 ;;
1323    sparc64) container_hosts=x86_64 ;;
1324    tricore) container_hosts=x86_64 ;;
1325    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1326    xtensa*) container_hosts=x86_64 ;;
1327  esac
1328
1329  for host in $container_hosts; do
1330    test "$container" != no || continue
1331    test "$host" = "$cpu" || continue
1332    case $target_arch in
1333      aarch64)
1334        # We don't have any bigendian build tools so we only use this for AArch64
1335        container_image=debian-arm64-cross
1336        container_cross_prefix=aarch64-linux-gnu-
1337        container_cross_cc=${container_cross_prefix}gcc
1338        ;;
1339      alpha)
1340        container_image=debian-alpha-cross
1341        container_cross_prefix=alpha-linux-gnu-
1342        ;;
1343      arm)
1344        # We don't have any bigendian build tools so we only use this for ARM
1345        container_image=debian-armhf-cross
1346        container_cross_prefix=arm-linux-gnueabihf-
1347        ;;
1348      cris)
1349        container_image=fedora-cris-cross
1350        container_cross_prefix=cris-linux-gnu-
1351        ;;
1352      hexagon)
1353        container_image=debian-hexagon-cross
1354        container_cross_prefix=hexagon-unknown-linux-musl-
1355        container_cross_cc=${container_cross_prefix}clang
1356        ;;
1357      hppa)
1358        container_image=debian-hppa-cross
1359        container_cross_prefix=hppa-linux-gnu-
1360        ;;
1361      i386)
1362        container_image=fedora-i386-cross
1363        container_cross_prefix=
1364        ;;
1365      loongarch64)
1366        container_image=debian-loongarch-cross
1367        container_cross_prefix=loongarch64-unknown-linux-gnu-
1368        ;;
1369      m68k)
1370        container_image=debian-m68k-cross
1371        container_cross_prefix=m68k-linux-gnu-
1372        ;;
1373      microblaze)
1374        container_image=debian-microblaze-cross
1375        container_cross_prefix=microblaze-linux-musl-
1376        ;;
1377      mips64el)
1378        container_image=debian-mips64el-cross
1379        container_cross_prefix=mips64el-linux-gnuabi64-
1380        ;;
1381      mips64)
1382        container_image=debian-mips64-cross
1383        container_cross_prefix=mips64-linux-gnuabi64-
1384        ;;
1385      mipsel)
1386        container_image=debian-mipsel-cross
1387        container_cross_prefix=mipsel-linux-gnu-
1388        ;;
1389      mips)
1390        container_image=debian-mips-cross
1391        container_cross_prefix=mips-linux-gnu-
1392        ;;
1393      nios2)
1394        container_image=debian-nios2-cross
1395        container_cross_prefix=nios2-linux-gnu-
1396        ;;
1397      ppc)
1398        container_image=debian-powerpc-test-cross
1399        container_cross_prefix=powerpc-linux-gnu-
1400        container_cross_cc=${container_cross_prefix}gcc
1401        ;;
1402      ppc64|ppc64le)
1403        container_image=debian-powerpc-test-cross
1404        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1405        container_cross_cc=${container_cross_prefix}gcc-10
1406        ;;
1407      riscv64)
1408        container_image=debian-riscv64-test-cross
1409        container_cross_prefix=riscv64-linux-gnu-
1410        ;;
1411      s390x)
1412        container_image=debian-s390x-cross
1413        container_cross_prefix=s390x-linux-gnu-
1414        ;;
1415      sh4)
1416        container_image=debian-sh4-cross
1417        container_cross_prefix=sh4-linux-gnu-
1418        ;;
1419      sparc64)
1420        container_image=debian-sparc64-cross
1421        container_cross_prefix=sparc64-linux-gnu-
1422        ;;
1423      tricore)
1424        container_image=debian-tricore-cross
1425        container_cross_prefix=tricore-
1426        ;;
1427      x86_64)
1428        container_image=debian-amd64-cross
1429        container_cross_prefix=x86_64-linux-gnu-
1430        ;;
1431      xtensa*)
1432        container_image=debian-xtensa-cross
1433
1434        # default to the dc232b cpu
1435        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1436        ;;
1437    esac
1438    : ${container_cross_cc:=${container_cross_prefix}gcc}
1439    : ${container_cross_ar:=${container_cross_prefix}ar}
1440    : ${container_cross_as:=${container_cross_prefix}as}
1441    : ${container_cross_ld:=${container_cross_prefix}ld}
1442    : ${container_cross_nm:=${container_cross_prefix}nm}
1443    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1444    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1445    : ${container_cross_strip:=${container_cross_prefix}strip}
1446  done
1447
1448  try=cross
1449  case "$target_arch:$cpu" in
1450    aarch64_be:aarch64 | \
1451    armeb:arm | \
1452    i386:x86_64 | \
1453    mips*:mips64 | \
1454    ppc*:ppc64 | \
1455    sparc:sparc64 | \
1456    "$cpu:$cpu")
1457      try='native cross' ;;
1458  esac
1459  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1460  for thistry in $try; do
1461    case $thistry in
1462    native)
1463      target_cc=$cc
1464      target_ccas=$ccas
1465      target_ar=$ar
1466      target_as=$as
1467      target_ld=$ld
1468      target_nm=$nm
1469      target_objcopy=$objcopy
1470      target_ranlib=$ranlib
1471      target_strip=$strip
1472      ;;
1473    cross)
1474      target_cc=
1475      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1476        if eval has "\"\${cross_cc_$target_arch}\""; then
1477          eval "target_cc=\"\${cross_cc_$target_arch}\""
1478        fi
1479      else
1480        compute_target_variable $target_arch target_cc gcc
1481      fi
1482      target_ccas=$target_cc
1483      compute_target_variable $target_arch target_ar ar
1484      compute_target_variable $target_arch target_as as
1485      compute_target_variable $target_arch target_ld ld
1486      compute_target_variable $target_arch target_nm nm
1487      compute_target_variable $target_arch target_objcopy objcopy
1488      compute_target_variable $target_arch target_ranlib ranlib
1489      compute_target_variable $target_arch target_strip strip
1490      ;;
1491    esac
1492
1493    if test -n "$target_cc"; then
1494      case $target_arch in
1495        i386|x86_64)
1496          if $target_cc --version | grep -qi "clang"; then
1497            continue
1498          fi
1499          ;;
1500      esac
1501    elif test -n "$target_as" && test -n "$target_ld"; then
1502      # Special handling for assembler only targets
1503      case $target in
1504        tricore-softmmu)
1505          build_static=
1506          got_cross_cc=yes
1507          break
1508          ;;
1509        *)
1510          continue
1511          ;;
1512      esac
1513    else
1514      continue
1515    fi
1516
1517    write_c_skeleton
1518    case $1 in
1519      *-softmmu)
1520        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1521          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1522          got_cross_cc=yes
1523          break
1524        fi
1525        ;;
1526      *)
1527        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1528          build_static=y
1529          got_cross_cc=yes
1530          break
1531        fi
1532        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1533          build_static=
1534          got_cross_cc=yes
1535          break
1536        fi
1537        ;;
1538    esac
1539  done
1540  if test $got_cross_cc != yes; then
1541    build_static=
1542    target_cc=
1543    target_ccas=
1544    target_ar=
1545    target_as=
1546    target_ld=
1547    target_nm=
1548    target_objcopy=
1549    target_ranlib=
1550    target_strip=
1551  fi
1552  test -n "$target_cc"
1553}
1554
1555write_target_makefile() {
1556  echo "EXTRA_CFLAGS=$target_cflags"
1557  if test -z "$target_cc" && test -z "$target_as"; then
1558    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1559    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1560    if test -n "$container_cross_cc"; then
1561      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1562      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1563    fi
1564    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1565    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1566    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1567    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1568    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1569    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1570    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1571  else
1572    if test -n "$target_cc"; then
1573      echo "CC=$target_cc"
1574      echo "CCAS=$target_ccas"
1575    fi
1576    if test -n "$target_ar"; then
1577      echo "AR=$target_ar"
1578    fi
1579    if test -n "$target_as"; then
1580      echo "AS=$target_as"
1581    fi
1582    if test -n "$target_ld"; then
1583      echo "LD=$target_ld"
1584    fi
1585    if test -n "$target_nm"; then
1586      echo "NM=$target_nm"
1587    fi
1588    if test -n "$target_objcopy"; then
1589      echo "OBJCOPY=$target_objcopy"
1590    fi
1591    if test -n "$target_ranlib"; then
1592      echo "RANLIB=$target_ranlib"
1593    fi
1594    if test -n "$target_strip"; then
1595      echo "STRIP=$target_strip"
1596    fi
1597  fi
1598}
1599
1600#######################################
1601# cross-compiled firmware targets
1602
1603# Set up build tree symlinks that point back into the source tree
1604# (these can be both files and directories).
1605# Caution: avoid adding files or directories here using wildcards. This
1606# will result in problems later if a new file matching the wildcard is
1607# added to the source tree -- nothing will cause configure to be rerun
1608# so the build tree will be missing the link back to the new file, and
1609# tests might fail. Prefer to keep the relevant files in their own
1610# directory and symlink the directory instead.
1611LINKS="Makefile"
1612LINKS="$LINKS docs/config"
1613LINKS="$LINKS pc-bios/optionrom/Makefile"
1614LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1615LINKS="$LINKS pc-bios/vof/Makefile"
1616LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1617LINKS="$LINKS tests/avocado tests/data"
1618LINKS="$LINKS tests/qemu-iotests/check"
1619LINKS="$LINKS python"
1620LINKS="$LINKS contrib/plugins/Makefile "
1621for f in $LINKS ; do
1622    if [ -e "$source_path/$f" ]; then
1623        symlink "$source_path/$f" "$f"
1624    fi
1625done
1626
1627echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1628
1629# Mac OS X ships with a broken assembler
1630if have_target i386-softmmu x86_64-softmmu && \
1631        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1632        test "$targetos" != "haiku" && \
1633        probe_target_compiler i386-softmmu; then
1634    subdirs="$subdirs pc-bios/optionrom"
1635    config_mak=pc-bios/optionrom/config.mak
1636    echo "# Automatically generated by configure - do not modify" > $config_mak
1637    echo "TOPSRC_DIR=$source_path" >> $config_mak
1638    write_target_makefile >> $config_mak
1639fi
1640
1641if have_target ppc-softmmu ppc64-softmmu && \
1642        probe_target_compiler ppc-softmmu; then
1643    subdirs="$subdirs pc-bios/vof"
1644    config_mak=pc-bios/vof/config.mak
1645    echo "# Automatically generated by configure - do not modify" > $config_mak
1646    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1647    write_target_makefile >> $config_mak
1648fi
1649
1650# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1651# (which is the lowest architecture level that Clang supports)
1652if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1653    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1654  write_c_skeleton
1655  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1656  has_z900=$?
1657  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1658    if [ $has_z900 != 0 ]; then
1659      echo "WARNING: Your compiler does not support the z900!"
1660      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1661    fi
1662    subdirs="$subdirs pc-bios/s390-ccw"
1663    config_mak=pc-bios/s390-ccw/config-host.mak
1664    echo "# Automatically generated by configure - do not modify" > $config_mak
1665    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1666    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1667    write_target_makefile >> $config_mak
1668  fi
1669fi
1670
1671#######################################
1672# generate config-host.mak
1673
1674config_host_mak="config-host.mak"
1675
1676echo "# Automatically generated by configure - do not modify" > $config_host_mak
1677echo >> $config_host_mak
1678
1679echo all: >> $config_host_mak
1680
1681if test "$targetos" = "windows"; then
1682  echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1683  echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1684  echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1685fi
1686
1687echo "SRC_PATH=$source_path" >> $config_host_mak
1688echo "TARGET_DIRS=$target_list" >> $config_host_mak
1689
1690if test -n "$gdb_bin"; then
1691    gdb_version=$($gdb_bin --version | head -n 1)
1692    if version_ge ${gdb_version##* } 9.1; then
1693        echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1694        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1695    else
1696        gdb_bin=""
1697    fi
1698fi
1699
1700if test "$container" != no; then
1701    echo "RUNC=$runc" >> $config_host_mak
1702fi
1703echo "SUBDIRS=$subdirs" >> $config_host_mak
1704echo "PYTHON=$python" >> $config_host_mak
1705echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1706echo "MESON=$meson" >> $config_host_mak
1707echo "NINJA=$ninja" >> $config_host_mak
1708echo "EXESUF=$EXESUF" >> $config_host_mak
1709
1710# use included Linux headers for KVM architectures
1711if test "$targetos" = "linux" && test -n "$linux_arch"; then
1712  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1713fi
1714
1715for target in $target_list; do
1716    target_dir="$target"
1717    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1718    case $target in
1719        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1720        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1721    esac
1722done
1723
1724if test "$default_targets" = "yes"; then
1725  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1726fi
1727
1728if test "$ccache_cpp2" = "yes"; then
1729  echo "export CCACHE_CPP2=y" >> $config_host_mak
1730fi
1731
1732# contrib/plugins configuration
1733echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1734echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1735echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1736echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1737echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1738if test "$targetos" = darwin; then
1739  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1740fi
1741
1742# tests/tcg configuration
1743(config_host_mak=tests/tcg/config-host.mak
1744mkdir -p tests/tcg
1745echo "# Automatically generated by configure - do not modify" > $config_host_mak
1746echo "SRC_PATH=$source_path" >> $config_host_mak
1747
1748# versioned checked in the main config_host.mak above
1749if test -n "$gdb_bin"; then
1750    echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1751fi
1752if test "$plugins" = "yes" ; then
1753    echo "CONFIG_PLUGIN=y" >> $config_host_mak
1754fi
1755
1756tcg_tests_targets=
1757for target in $target_list; do
1758  arch=${target%%-*}
1759
1760  case $target in
1761    xtensa*-linux-user)
1762      # the toolchain is not complete with headers, only build system tests
1763      continue
1764      ;;
1765    *-softmmu)
1766      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1767      qemu="qemu-system-$arch"
1768      ;;
1769    *-linux-user|*-bsd-user)
1770      qemu="qemu-$arch"
1771      ;;
1772  esac
1773
1774  if probe_target_compiler $target || test -n "$container_image"; then
1775      test -n "$container_image" && build_static=y
1776      mkdir -p "tests/tcg/$target"
1777      config_target_mak=tests/tcg/$target/config-target.mak
1778      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1779      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1780      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1781      echo "TARGET=$target" >> "$config_target_mak"
1782      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1783      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1784      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1785
1786      # will GDB work with these binaries?
1787      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1788          echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
1789      fi
1790
1791      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1792      tcg_tests_targets="$tcg_tests_targets $target"
1793  fi
1794done
1795
1796if test "$tcg" = "enabled"; then
1797    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1798fi
1799)
1800
1801if test "$skip_meson" = no; then
1802  cross="config-meson.cross.new"
1803  meson_quote() {
1804    test $# = 0 && return
1805    echo "'$(echo $* | sed "s/ /','/g")'"
1806  }
1807
1808  echo "# Automatically generated by configure - do not modify" > $cross
1809  echo "[properties]" >> $cross
1810
1811  # unroll any custom device configs
1812  for a in $device_archs; do
1813      eval "c=\$devices_${a}"
1814      echo "${a}-softmmu = '$c'" >> $cross
1815  done
1816
1817  echo "[built-in options]" >> $cross
1818  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1819  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1820  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1821  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1822  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1823  echo "[binaries]" >> $cross
1824  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1825  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1826  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1827  echo "ar = [$(meson_quote $ar)]" >> $cross
1828  echo "nm = [$(meson_quote $nm)]" >> $cross
1829  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1830  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1831  if has $sdl2_config; then
1832    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1833  fi
1834  echo "strip = [$(meson_quote $strip)]" >> $cross
1835  echo "widl = [$(meson_quote $widl)]" >> $cross
1836  echo "windres = [$(meson_quote $windres)]" >> $cross
1837  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1838  if test "$cross_compile" = "yes"; then
1839    echo "[host_machine]" >> $cross
1840    echo "system = '$targetos'" >> $cross
1841    case "$cpu" in
1842        i386)
1843            echo "cpu_family = 'x86'" >> $cross
1844            ;;
1845        *)
1846            echo "cpu_family = '$cpu'" >> $cross
1847            ;;
1848    esac
1849    echo "cpu = '$cpu'" >> $cross
1850    if test "$bigendian" = "yes" ; then
1851        echo "endian = 'big'" >> $cross
1852    else
1853        echo "endian = 'little'" >> $cross
1854    fi
1855    cross_arg="--cross-file config-meson.cross"
1856
1857    native="config-meson.native.new"
1858    echo "# Automatically generated by configure - do not modify" > $native
1859    echo "[binaries]" >> $native
1860    echo "c = [$(meson_quote $host_cc)]" >> $native
1861    mv $native config-meson.native
1862    cross_arg="$cross_arg --native-file config-meson.native"
1863  else
1864    cross_arg="--native-file config-meson.cross"
1865  fi
1866  mv $cross config-meson.cross
1867
1868  rm -rf meson-private meson-info meson-logs
1869
1870  # Built-in options
1871  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1872  test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
1873  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1874  test "$static" = yes && meson_option_add -Dprefer_static=true
1875  test "$pie" = no && meson_option_add -Db_pie=false
1876  test "$werror" = yes && meson_option_add -Dwerror=true
1877
1878  # QEMU options
1879  test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
1880  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1881  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1882  test "$plugins" = yes && meson_option_add "-Dplugins=true"
1883  test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
1884  test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
1885  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1886  run_meson() {
1887    NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
1888  }
1889  eval run_meson $meson_options
1890  if test "$?" -ne 0 ; then
1891      error_exit "meson setup failed"
1892  fi
1893  echo "$meson" > build.ninja.stamp
1894else
1895  if test -f meson-private/cmd_line.txt; then
1896    # Adjust old command line options that were removed
1897    # sed -i is not portable
1898    perl -i -ne '
1899      /^sphinx_build/ && next;
1900      print;' meson-private/cmd_line.txt
1901  fi
1902fi
1903
1904# Save the configure command line for later reuse.
1905cat <<EOD >config.status
1906#!/bin/sh
1907# Generated by configure.
1908# Run this file to recreate the current configuration.
1909# Compiler output produced by configure, useful for debugging
1910# configure, is in config.log if it exists.
1911EOD
1912
1913preserve_env() {
1914    envname=$1
1915
1916    eval envval=\$$envname
1917
1918    if test -n "$envval"
1919    then
1920	echo "$envname='$envval'" >> config.status
1921	echo "export $envname" >> config.status
1922    else
1923	echo "unset $envname" >> config.status
1924    fi
1925}
1926
1927# Preserve various env variables that influence what
1928# features/build target configure will detect
1929preserve_env AR
1930preserve_env AS
1931preserve_env CC
1932preserve_env CFLAGS
1933preserve_env CXX
1934preserve_env CXXFLAGS
1935preserve_env LD
1936preserve_env LDFLAGS
1937preserve_env LD_LIBRARY_PATH
1938preserve_env NM
1939preserve_env OBJCFLAGS
1940preserve_env OBJCOPY
1941preserve_env PATH
1942preserve_env PKG_CONFIG
1943preserve_env PKG_CONFIG_LIBDIR
1944preserve_env PKG_CONFIG_PATH
1945preserve_env PYTHON
1946preserve_env QEMU_GA_MANUFACTURER
1947preserve_env QEMU_GA_DISTRO
1948preserve_env QEMU_GA_VERSION
1949preserve_env SDL2_CONFIG
1950preserve_env SMBD
1951preserve_env STRIP
1952preserve_env WIDL
1953preserve_env WINDRES
1954preserve_env WINDMC
1955
1956printf "exec" >>config.status
1957for i in "$0" "$@"; do
1958  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1959done
1960echo ' "$@"' >>config.status
1961chmod +x config.status
1962
1963rm -r "$TMPDIR1"
1964